Any way to judge the age of a knife?

[Bypass]

1980-1989. Nice

Actually 1971

1971

6347 HP SSP

reddish bone

razor edge etch

 

[Just1more]

Year​	Pattern Number​	Handle Description​	Other Discerning Features​	Estimated Market Value​
1940 - 1964​	3347​	yellow composite​	no​	$71.00​
1940 - 1964​	6347 HP​	pretty bone​	no​	$166.74​
1940 - 1964​	6347 PU​	pretty bone​	no​	$213.00​
1965 - 1969​	5347 HPS SS​	genuine stag​	no​	$253.00​
1965 - 1969​	6347 PE​	reddish bone​	no​	$120.00​
1965 - 1969​	6347 PU​	reddish bone​	no​	$130.75​
1970​	5347 HP SSP​	genuine stag​	no​	$207.50​
1970​	6347 HP SSP​	reddish bone​	no​	$112.24​
1971​	5347 HP SSP​	genuine stag​	razor edge etch​	$175.00​
1971​	6347 HP SSP​	reddish bone​	razor edge etch​	$89.00​
1973​	6347 HP SSP​	reddish bone​	no​	$64.88​
1974​	6347 HP​	reddish bone​	no​	$61.99​
1975​	6347 HP​	reddish bone​	no​	$64.25​
1975​	6347 HP SSP​	reddish bone​	razor edge etch​	$67.00​
1976​	5347 HP SSP​	genuine stag​	razor edge etch​	$145.00​
1976​	6347 HP SSP​	reddish bone​	razor edge etch​	$59.00​
1977​	5347 SSP​	genuine stag​	blue scroll​	$145.00​
1979​	6347 HP​	bone​	no​	$51.30​
1980​	6347 HP​	bone​	no​	$46.50​
1980​	sr6347​	smooth rose bone​	no​	$63.00​
1981​	6347 HP​	bone​	no​	$45.98​
1984​	6347 HP SSP​	bone​	no​	$45.00​
1990​	6347​	bone​	no​	$42.57​
1992​	5347​	genuine stag​	no​	$83.50​

Is there more to this list? I don’t see the markings mine has and want to double check age. My initial guess was based on the blade stamp “case xx” but it also has a 6318 HP on it.

 

[Bypass]

Is there more to this list? I don’t see the markings mine has and want to double check age. My initial guess was based on the blade stamp “case xx” but it also has a 6318 HP on it.

Year​	Pattern Number​	Handle Description​	Other Discerning Features​	Estimated Market Value​
1940 - 1964​	4318​	white composite​	no​	$194.65​
1940 - 1964​	6318 HE​	reddish bone​	no​	$142.00​
1940 - 1964​	6318​	reddish bone​	no​	$150.51​
1940 - 1964​	6318 PU​	reddish bone​	no​	$187.00​
1965 - 1969​	3318​	yellow composite​	no​	$53.00​
1965 - 1969​	6318 HP​	reddish bone​	no​	$103.50​
1970​	6318 HP​	reddish bone​	no​	$99.75​
1971​	6318 SHSP​	reddish bone​	no​	$75.00​
1972​	6318 HE​	reddish bone​	no​	$68.00​
1972​	6318 HP​	reddish bone​	no​	$63.00​
1973​	3318 HE​	yellow composite​	no​	$27.00​
1973​	6318 HP​	reddish bone​	no​	$58.99​
1974​	6318 SSP​	reddish bone​	no​	$55.50​
1975​	6318 HP​	reddish bone​	no​	$56.21​
1978​	6318 HP​	reddish bone​	no​	$53.00​
1979​	5318 HP SSP​	genuine stag​	bradford centenial etch​	$75.00​
1979​	6318 HP SSP​	bone​	no​	$64.99​
1980​	5318 SSP​	genuine stag​	75th anniversary etch​	$84.00​
1983​	6318 HP​	bone​	no​	$37.00​
1984​	6318 SHSP​	bone​	new grind​	$56.50​
1988​	5318 HP SS​	genuine stag​	no​	$53.50​
1993​	5318 SS​	genuine stag​	with box​	$50.00​
1997​	5318 SS​	genuine stag​	no​	$62.00​
1997​	R5318​	Red Stag​	no​	$68.00​
1999​	5318 SS​	genuine stag​	with box​	$62.00​
2000​	5318 SS​	genuine stag​	with box​	$69.00​

 

[Just1more]

Year​	Pattern Number​	Handle Description​	Other Discerning Features​	Estimated Market Value​
1940 - 1964​	4318​	white composite​	no​	$194.65​
1940 - 1964​	6318 HE​	reddish bone​	no​	$142.00​
1940 - 1964​	6318​	reddish bone​	no​	$150.51​
1940 - 1964​	6318 PU​	reddish bone​	no​	$187.00​
1965 - 1969​	3318​	yellow composite​	no​	$53.00​
1965 - 1969​	6318 HP​	reddish bone​	no​	$103.50​
1970​	6318 HP​	reddish bone​	no​	$99.75​
1971​	6318 SHSP​	reddish bone​	no​	$75.00​
1972​	6318 HE​	reddish bone​	no​	$68.00​
1972​	6318 HP​	reddish bone​	no​	$63.00​
1973​	3318 HE​	yellow composite​	no​	$27.00​
1973​	6318 HP​	reddish bone​	no​	$58.99​
1974​	6318 SSP​	reddish bone​	no​	$55.50​
1975​	6318 HP​	reddish bone​	no​	$56.21​
1978​	6318 HP​	reddish bone​	no​	$53.00​
1979​	5318 HP SSP​	genuine stag​	bradford centenial etch​	$75.00​
1979​	6318 HP SSP​	bone​	no​	$64.99​
1980​	5318 SSP​	genuine stag​	75th anniversary etch​	$84.00​
1983​	6318 HP​	bone​	no​	$37.00​
1984​	6318 SHSP​	bone​	new grind​	$56.50​
1988​	5318 HP SS​	genuine stag​	no​	$53.50​
1993​	5318 SS​	genuine stag​	with box​	$50.00​
1997​	5318 SS​	genuine stag​	no​	$62.00​
1997​	R5318​	Red Stag​	no​	$68.00​
1999​	5318 SS​	genuine stag​	with box​	$62.00​
2000​	5318 SS​	genuine stag​	with box​	$69.00​

Thank you sir. Do you have a link to this?

 

[Bypass]

Thank you sir. Do you have a link to this?

https://www.allaboutpocketknives.com/price_guide/case/318/

 

[Just1more]

https://www.allaboutpocketknives.com/price_guide/case/318/

Awesome. Thanks

 

[Bypass]

Thank you sir. Do you have a link to this?

I think my Grandad gave the knife to my Dad after he got home from Vietnam. I gotta ask my Father about this.