Note: I am sure there are many other combinations of how the Dolt holsters were constructed. However for now, this is a list I have come up with to best date the Dolt Hammer Holsters.
— 1958 - 1959: Dolt Holster, leather, small Dolt piton logo stamp (without letters), long belt plate, long hammer holder tube, copper rivets, copper washers. Shown in the Dolt 1958 catalog. - Jet Black - Medium Brown
— 1959 - January 1962: Dolt Holster, leather, small Dolt piton logo stamp with “DOLT” letters in stamp, long belt plate, long hammer holder tube, copper rivets. - Jet Black - Medium Brown
— 1966 early - 1966 October: Dolt Super Holster, nylon, large Dolt piton logo stamp, Made in U.S.A. stamp, Pat. Pend. stamp, 5/16” rivets, brass washers, short belt plate, long hammer holder tube. Included was a small plastic Dolt logo piton for keychain. - Model B, Ebony firm - Model W, Translucent Brown, flexible
— 1966 October - 1967 August: Super Holster, nylon, large Dolt piton logo stamp, Made in U.S.A. stamp, Pat. Pend. stamp, 5/16 steel rivets, brass washers, short and long belt plates, all have long hammer holder tubes. - Model B, Ebony, firm, short belt plate - Model W, Brown, flexible, short belt plate - Model F, Blue, firm, long belt plate - Model K, Red, flexible, long belt plate
— 1967 August: Super Holster, leather, large Dolt piton logo stamp, Made in U.S.A. stamp, U.S. Patent Des. No. 208, 289 stamp, 5/16 steel rivets, aluminum washers, short hammer holder tube. - Brown leather
— 1967 August - 1968: Doltster, nylon, large Dolt piton logo stamp, Made in U.S.A. stamp, U.S. Patent Des. No. 208,289 stamp, short and long belt plate, 5/16” steel rivets, brass washers, all have long hammer holder tubes. - Model B, Ebony, firm, short belt plate - Model W, Brown, flexible, short belt plate - Model F, Blue, firm, long belt plate - Model K, Red, flexible, long belt plate
— 1968 - 1969: Doltster, nylon, small Dolt piton logo stamp, Made in U.S.A. stamp, U.S. Patent Des. No. 208,289 stamp, short and long belt plate, 3/8” steel rivets, aluminum washers, all have long hammer holder tubes, many different color combinations. - Model B, Ebony, firm, short belt plate - Model W, Brown, flexible, short belt plate - Model F, Blue, firm, long belt plate - Model K, Red, flexible, long belt plate
— 1969 - 1971: Doltster, some of the models now have short hammer holder tubes, nylon, small Dolt piton logo stamp, Made in U.S.A. stamp, U.S. Patent Des. No. 208,289 stamp, short and long belt plate, 3/8” steel rivets, aluminum washers, many different color combinations. - Model B, Ebony, firm, short belt plate, short hammer tube - Model W, Brown, flexible, short belt plate, short hammer tube - Model F, Blue, firm, long belt plate, short hammer tube - Model K, Red, flexible, long belt plate, short hammer tube
— 1970: Doltster, very very short belt plate, nylon, small Dolt piton logo stamp, Made in U.S.A. stamp. Steel rivets and aluminum washers.
— 1970: Doltster, short leather belt plate, long nylon hammer holder tube, large Dolt piton logo stamp, steel 3/8” rivets, aluminum washers. - Brown leather, White nylon
— 1970: Doltster, nylon, large Dolt piton logo stamp, Made in U.S.A. stamp, U.S. Patent Des. No. 208/289 stamp, 5/16” steel rivets, aluminum washers, - White Nylon, firm (short belt plate, short hammer holder tube) - White nylon flexible version ?
— 1970 - 1971: Doltster, nylon, large Dolt piton logo stamp, U.S. Patent Des. No. 208/289 stamp, 3/8” steel rivets, zinc plated steel washers, nylon is a thickness which is between the past flexible and firm holster models. Has no “U.S.A. stamp. - White nylon, medium firm, (short belt plate, short hammer holder tube) - White nylon, medium firm, (long belt plate, short hammer holder tube)