As far as I know there is no Crosman model 88. Daisy made a model 88.
I've attached a Link to Crosman's list of Owners manuals for all their rifles. You are welcome to look at it and try to find a Crosman model 88.
See the link below.
Your serial number indicates that your model 88 lever action rifle was made in the year 1956.
There is no such rifle, the Winchester Model 88 is a highly collectible lever action center fire rifle available in .243, .284, .308, and .358.
single shot 22
If you are asking about the conversion kit to the 88 gram adapter for the 1077, Then unfortunately they are no longer available. You could try contacting Crosman directly and ask them. Go to the "Crosman" home page and at the bottom click on "Contact Us".
In order to give you a more accurate value on your winchester model 88,I would need to know the caliber of the rifle,and what condition your rifle is in?
your Winchester model 88 lever action rifle was made in 1967.
Your winchester model 88 rifle was made in the first year of production,which was 1955.
If you have the Marlin model 88-C model,this promotional model semi-auto .22cal rifle was made from 1948-1956.If you have the model 88-DL model,this was made from 1953-1956.
You will need to include the serial number to get the year of production of your Winchester model 88 lever action rifle.
Daisy made a model Golden Eagle BB rifle but it was a model 104 golden Eagle from 1966-1974. Daisy made a model 88 Hunter rifle, roughly from 1957 - 1960 Daisy made a model 98 Daisy Eagle in three variations from 1955 -1960. (I think this is the rifle you are referring to.)
Your question cannot be answered without you providing a serial number to your Winchester model 88 lever action rifle.
With the serial number that you provided.Your Winchester model 88 lever action rifle was made in 1960.