Simple: do a Google search on "Daisy air guns" and then select "Images" you will find over 10 google pages of Daisy photos.
See the link below you will find all the Crosman rifles manuals there.
Crosman offers a service to locate shops that repair older Crosman air guns and rifles. See the link below.
Sheridan air rifles who is owned by Crosman Sheridans are 5mm air rifles
Crosman made 4 versions of the model 66 AIR RIFLE it's not a gun.See this link for the manual and parts list http://www.crosman.com/cs/manuals/crosman-rifles
If it's a current air gun (Not Air Soft) model then you can order the parts from Crosman. If it's an older model then Crosman offers a free service to locate shops that repair older Corsman air guns /rifles. See the links below.
Crosman offers a service to locate repair shops that repair older air rifles and air guns. See the link below.
Crosman no longer repairs older air rifles, But there are several places around the country that specialize in air gun repair. Crosman offers a service to locate these shops for you. See the link below and click on "Find a service center" at the bottom of the page. You can also find the original owners manual on the same Crosman page.
If you are asking about air rifles it was made by Crosman Air guns.
China
Crosman offers a service to locate repair shops that repair older Crosman air rifles. See the link below
Crosman is the Manufacturer of most Benjamin Sheridan Air Rifles however some are made in China and I have even seen rifles that were made by other manufacturers produced for Crosman using the Benjamin name. Crosman purchased Benjamin in 1992 before that they were a separate company that was started in 1899 by Walter Benjamin.
This rifles was made between 1961-69