It would really help if you stated the manufacture of the 1088. So I'm going to guess it's a Crosman. See the link below
see the link below for the Owners manual.
Simple. They never made a 1800 model. They did make a 1088 model and a 1861 model. This question bothered me so I kept searching for an answer. I found Crosman made a model 1600 powermatic from 1979-90 it was a BB pistol. Check you numbers again I think your "8' is really a "6". If so, then it's a model 1600 powermatic.
This pistol was made between 1978 and 1984. Crosman no longer supplies parts for this model, But the offer a free service to locate shops that repair older Crosman air guns. See the link below
Crosman still supports this air pistol. See the link below.
Crosman sells parts for the 1377. contact Crosman customer service. see the link below.
Crosman no longer has parts for this pistol. However they offer a free service to locate independent shops that repair older Crosman air guns and rifles. See the link below.
I only have some information for you. Any JC Higgins air pistol that begins with model 126 was made by Crosman air gun. Any model that starts with 799 was made by Daisy air gun. I suggest you click the Crosman link below and check the owners manuals to try to locate your pistol. Then re-post the Crosman model number along with the condition of the pistol to get an estimate of value.
If it's not on the outside then very possibly it's under the grip cover
I assume you are asking about the Crosman model 36 Frontier. If this is the right pistol then please state the condition of the pistol to get an estimate of value. Is it in Poor, Fair, Good, Vary Good or Excellent condition?
Crosman offers a service to locate repair shops the repair older Crosman, Benjamin and Sheridan air guns. See the link below
You need to state the condition of the pistol in order to get an estimate of value.