carknack

For a 1925 DB, I need the following parts: (1) Ball and socket joint, hand throttle control rod linkage. (2) Battery box cover. (3) Fuel tank gauge. (4) Flywheel housing timing hole cover.

I own two DB parts catalogs. Both have the title “MASTER PARTS LIST DODGE BROTHERS MOTOR VEHICLES” on the front cover. However, only one of them also has the title, up side down, on the back cover and “(Souvenir Edition 1967)” stamped in red at the bottom left hand corner of the first page. Otherwise the catalogs are identical. Can anyone explain these two discrepancies to me?