Serial numbers were not required before 1968. Some makers sn'd and some didn't.
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1933-1945. sales@countrygunsmith.net
Some Marlin Model 56 did not have a stamped serial number. The Firearms Control Act of 1968 required serial numbers to be stamped on weapons and since the Model 56 began production in 1955 it was not required. While Marlin did stamp some, they discontinued the practice saying it was non productive.
Stevens Model 56 Made 1933 till 1945, 97,500 made. from Gun Trader.
1, 2, 4, 7, 8, 14, 28, and 56 all divide evenly into 56. These also are all the factors of 56.
1 (this is a factor of all numbers) and 2 (since 54 and 56 are both even numbers)
1 (this is a factor of all numbers) and 2 (since 54 and 56 are both even numbers) This is it.
Look up J. Stevens model 56
56 is a rational whole natural number. Or to put it another way: 56 is a Natural number, but as all natural numbers are also whole numbers 56 is also a whole number, but as all whole numbers are also rational numbers 56 is also a rational number. Natural numbers are a [proper] subset of whole numbers; Whole numbers are a [proper] subset of rational numbers. The set of rational numbers along with the set of irrational numbers make up the set of real numbers
As a product of its prime factors: 2*2*2*7 = 56
The average of the numbers 51, 52, and 56 is 53. To get the average you would add all three numbers and then divide by three.
The numbers 1, 2, 4, 8 all go into 56 and 64