About $400, new
100-300 or so
You can get faux ivory grips for a Colt Walker at: tombstonegrips.com
$1500 -$1600 without Ivory grips,,, the grips would need evaluation.
Single action or double action? Exactly how is it marked? sales@countrygunsmith.net
$750 and up, depending on condition,markings,and history of the gun.
Me Too. mine is SS# 98852 SA. any body knows, e-mail ralaniz6894@charter.net
Made in 1940. Value will depend on factors you don't describe; overall condition, barrel length, accessories, original papers, original box, whether the ivory is in fact ivory, if it is ivory whether it was factory supplied or aftermarket. Range from a few hundred to a few thousand. BTW, the only way to know if the ivory is factory is to get it lettered by Colt. The Colt website has a section that describes how to do this. Cost will be in the 100-200 USD range.
Try Nutmegsports.com
1959
Try asking Jim Alaimo of Nutmegsports.com
Without knowing if if left the factory that way the range could be 100 to a few thousand
Although often billed as ivory or bone, both sets are synthetic. Frisch verified that all of these grips were made by Maurice D. Scarlac of a material he developed called Catalin. Wayne reportedly liked them so much that he took them home and personally "tea-stained" them to a yellow color such as the patina often seen on ivory and bone grips.