In a near new condition with an original box $180-210. GunBroker.com or AuctionArms.com will help you to find a buyer.
What is the condition of the air gun? Without that information it is impossible to give you an estimate of the current value. Is it excellent, very good, good, fair, poor, not working.
What do you mean by "atrigger". If you are looking for the Owners Manual for the Crosman Mark 1 Pellet gun, then see the link below.
This model was made between 1966 to 1983 in fair condition it is worth between $45 - $70
The Mark I was made between 1966-83 in two variations. It's a .22 Caliber pistol. Please state the condition of the pistol to get an estimate of value. Does it still work? what condition is it in Excellent. Vary good, Good, Fair or Poor?
There are 2 versions of the Mark 2. 1966-1980 it had an adjustable power knob. 1981-1986 it had no adjustable power knob.
Please state the condition of the pistol to get an estimate of value.
What is the condition of the Crosman? No estimate can be given without knowing the condition of the Crosman. Excellent (Like new) GOOD (Very good condition) Fair (Shows use) Poor (Well used may be nonworking)
The Blue Book of Air Guns lists the Mark 1 Ruger in excellent condition with box in the range of $110 to $137.50 if it has adjustable power and 10% less if it does not have adjustable power. It is hard to know the integrity of the seals on a gun this old without testing it. I would suggest testing it to get the full value.
It all depends on the condition of the pistol. Unfortunately you did not give that needed information in order for me to give you an estimate of value. You need to give it some sort of rating like Poor, Fair, Good, Very Good or Excellent condition. Or something like that so I can give you an estimated range of value..
The Mark II was made between 1966-1980 then came adjustable power made between 1981-1986. It's current value is Apx: 100%=$135, 90%=$85, 60%=$50
CROSMAN MARK II The first Variant was made between 1966--1980 Second Variant (Without adjustable power) 1981-- 1986
Face value if circulated, maybe $1 if a proof (S mint mark) coin in its original holder.