I'm going to try to answer this in two parts. 1. Montgomery Wards Pellet rifles and guns were made by Crosman corp under the Hawthorne name. 2. This is pure speculation and a best guess. I believe the m140 is the "Crosman model 140" it is a pump, single shot, 22 cal pellet rifle. It had a wooden stock with the forearm as the pump handle. there were 3 variations made, starting in 1954 ending in 1968.
the proper size
In most states you must be 18 years old
In most states you must be 18 years old
In most states, you just have to be 18 years old.
If you are talking about Air Soft guns, 18 years old to buy one.
I kid you not. I see maybe one in a thousand questions about air gun that ask about the Montgomery Ward Hawthorne brand Air gun. Unfortunately my catalogues sources has very little to say about the crossover brand. I do know that all the airguns for Wards were made by Crosman air gun company under the Hawthorne brand name. My books only list 10 crossover models, but I know there were more. Of the 10 listed only one is a pistol and that a Crosman 38T or 38C. it looks like an old Colt 38 firearm. This may be your pellet gun. ( Both of these came in .177 and .22 caliber.) Now as for value. It's hard to set an estimated value without more information about the pellet gun. You will have to give it some sort of rating like Poor, Fair, Good, Very Good or Excellent so I can set a value. See the link below for all the owners manual and parts manuals made by Crosman.
50-100 or so
Depends on where you live but usually you have to be 18 to purchase one
The model 132 was made from 1942 to 1986.
What model is it. How old is it, what condition is it in, is it still working?
In the Unites States you have to be 18 to purchase a pellet or BB gun, but you can be any age to shoot it under adult supervision.
25-75 USD