I found the info. below by using Google. The manufacturer Santa Barbara also made center fire rifles that were distributed by Marathon Products.
Originally Posted by HONDOSF&A(25-0-0) Post#1 - Posted: 03/10/2007 at 05:37:58
MARATHON PRODUCTS, INC. (Wethersfield, CT.) is listed in the 25th Anniversary of "Blue Book of Gun Values". There firearms were manuactured by Santa Barbara Armaments of Spain, between 1985 - 1987. Note: If you disassemble your rifle, you should find the year it was manufactured just ahead of your serial #,on the bottm side of the barrel(most likely "86" ("1986")). Not sure of the exact quantity produced (over a hundred by the serial #'s on my three). P.S. I think they used up the some surplus stocks from the sub-model ".22 SUPER SHOT" to produce these .32 Cal. Black Powder Only versions, because of no hole under the barrel to store the ram rod. I've found the "RAPID ROD" (a folding ram rod that stores in a belt pouch) by Atsko,Inc. works well with these Pea shooters!
Description of a Santa Barbara .270 center fire rifle sold by Marathon Products: