Help to decipher a mopar vin number

Remember that sequence number includes all cars built on the Hamtramk line (which I believe was actually two lines). ALL A-body convertibles from '67-69 (not sure about earlier) were built at Dodge Main (Hamtramk). My GTS ('68 convertible) has a sequence number in the 111,7xx range (11,7xx cars scheduled - it was not a 1-1 in sequence number and SPD for a lot of reasons) with an SPD of 8/28/67. My '67 Barracuda convertible has a sequence # in the 302,8xx range with an unknown SPD. (311,***, a '67 GTS hardtop in the registry has an SPD of 4/6/67).