The quantity is correct for the 176A built in 1930 however it was introduced in the last half of 29 when 93 were built. The Dual Cowl/Dual windshield version 176 B had 42 built in '29 and 90 in '30.
From the one photo the body looks long for a 176. There was a 177 Touring Sport model built, virtually the same except it would hold 7 people (2 jump seats) and had the longer body to accommodate them.
All this info is available under Documents, Lincoln Production information on the website.