50-400 USD or so
Mine has it.
The Model 42 was made 1935-1937. Variations 42A, L42A, 42B, 42C and 42 M were made from 1937-1950.
Your Western Field model 46b was made for Montgomery Wards(Western Field) by the company Mossberg and Sons.The mossberg model 42 was made from 1935-1941 as the model 42,42A,42B,and model 42C.the western Field model 46b and the Mossberg model 42 are the same firearm.I hope that you find this informative.
Go here: <http://www.havlinsales.com/> Click on .22 parts & scroll down 1/4 of the page for MOSSBERG .22 SCOPE MOUNT For models 26B, 26C, 42A, 42B, 42C, 42M, 43, 44US, 46A, 46B and 46M.
42B
32D
The Electric Company - 1971 42B 6-42 was released on: USA: 14 December 1976
Too bad that's not a^2 - ab - 42b^2 That factors to (a + 6b)(a - 7b)
$380
42b
Best Buy probably has one. Look on google....
If you mean: (3b+7)^2 then it is 9b^2+42b+49