The marlin model 81C which was made from 1940-1970 is valued at between 65-110 dollars,depending on the overall condition of your rifle,and a good bore.
81C is 177.8F
First some background info on the Model 81 Made from 1936 to 1950 , @ 55,581 produced. aw several asking prices for the model It was offered in the follwing grades: 81A Standard 81C Special (changed to 81B) 81D Peerless 81E Expert 81F Premier Yours could be worth 175 to 1000 depending on grade.
The models 80C and 81C were available in the time period mentioned. These were offered in clip versions, (80C and 81C) and tubular mag versions.
This polynomial is irreducible; it cannot be factored.
(9, 18, 27) (36, 45, 54) (9, 90, 900)
Yes; the factored form would be (9c+4)(9c+4) or just (9c+4)2 Since the two factors are the same, the beginning trinomial 81c2+72c+16 is a perfect square trinomial
2N = 288H = 81C = 123O = 48Total = 96 g/mol to 2 sig figs or 96.1 to 3 sig figs
The rate in 1995 was the rate for the letter value at the date of issue. Stamp Value Date of rate changeA 15 cents 5/29/78B 18 cents 3/22/81C 20 cents 11/1/81D 22 cents 2/17/85E 25 cents 4/3/88F 29 cents 2/3/91... F makeup rate 4 centsG 32 cents 1/1/95... G makeup rate 3 centsH 33 cents 1/10/99... H makeup rate 1 cent(no I stamp) 34 cents 1/7/01
Stamp Value Date of rate changeA 15 cents 5/29/78B 18 cents 3/22/81C 20 cents 11/1/81D 22 cents 2/17/85E 25 cents 4/3/88F 29 cents 2/3/91... F makeup rate 4 centsG 32 cents 1/1/95... G makeup rate 3 centsH 33 cents 1/10/99... H makeup rate 1 cent(no I stamp) 34 cents 1/7/01
Stamp Value Date of rate changeA 15 cents 5/29/78B 18 cents 3/22/81C 20 cents 11/1/81D 22 cents 2/17/85E 25 cents 4/3/88F 29 cents 2/3/91... F makeup rate 4 centsG 32 cents 1/1/95... G makeup rate 3 centsH 33 cents 1/10/99... H makeup rate 1 cent(no I stamp) 34 cents 1/7/01
Stamp Value Date of rate changeA 15 cents 5/29/78B 18 cents 3/22/81C 20 cents 11/1/81D 22 cents 2/17/85E 25 cents 4/3/88F 29 cents 2/3/91... F makeup rate 4 centsG 32 cents 1/1/95... G makeup rate 3 centsH 33 cents 1/10/99... H makeup rate 1 cent(no I stamp) 34 cents 1/7/01
Stamps with letter denomination values: STAMP VALUE DATE of rate change ============================== A 15 cents 5/29/78 B 18 cents 3/22/81 C 20 cents 11/1/81 (!) D 22 cents 2/17/85 E 25 cents 4/3/88 F 29 cents 2/3/91 G 32 cents 1/1/95 H 33 cents 1/10/99 None are particularly scarce except for one H post card rate which was printed but never issued. However a few were actually used.