The Crosman model 114 was made between 1950-55 and it has collectors value if it still works. Unfortunately you did not state the condition of the rifle so no estimate of value can be given. Re-post and let me know the condition and I will try to give you a value. If you want an owners manual for this rifle go to the CROSMAN home page and click on "Download a manual" there you will find your model 114 and download it along with an original parts list.
Crosman made a V-350 from 1961 - 1969. I do not believe they made an I-350.
I can find no record of Crosman ever making a model 3101 but they did make a model 3100 from 1987-90 See the link below for the full list of old Crosman models
You will have to go online and do a search for "Airgun repair " and locate someone who can repair it for you. ( OR ) This rifle is not that old and normally Crosman has parts for it but this model is not one of the rifles that Crosman has parts onhand, but they do offer a service to locate repair shops that work on Crosman rifles.See the link below
The model 130 was made between 1953-1970
The Crosman Bullseye Target model 105 is a pump pistol made between 1947-52
What model is it. How old is it, what condition is it in, is it still working?
The Crosman model 150 is a .22 caliber pellet pistol. There are 2 variations of this model all were made between 1954-67. There is also a model 150C Medalist and a model 150PK. The Crosman model 150 was made in two variations starting in 1954 - 1956 it had adjustable power. 1956- 1967 with non adjustable power. see the link below for the owners manual
It was made between 1976 and 1983.
This is a JC Higgins model air rifle made for Sears by Crosman air gun company. Its really a Crosman model V350 made between 1961-69. It's a push barrel BB rifle.
I've gone through all of my resourced and could not find a model 6231N Crosman. If this is the model number it doesn't conform to Crosman normal numbering system. I've looked through all the models that Crosman has made and could not find anything. I believe you have a Crosman but I need more information to identify it. The Crosman home page has a link to all of their Air Gun & Rifle Manuals. If you want you can search there. See the link Below and then click on "Download a manual." when it opens.
The Crosman model 700 has not been in production sense 1971 so Crosman no longer makes parts for it. However there are shops that repair these old rifles. Crosman offers a free service to locate them and have it repaired. See the link below. http://www.crosman.com/cs/service-center
This is a Crosman model V350 it was made for Sears between 1961-1969