The coil and bracket are an engine assembly, so the 69 AIM would be of little help.
In this case I used the Chevy By The Numbers and the GM 69 P&A (rev 10-1-69). The CBTN on page 242 shows the 1111499 dist. used on the 69 396 & 427. To verify this I used the 69 P&A 2.361 page 2-24.
The 69 P&A group 2.170 page 2- 4 shows 3 coils 1115202 (1.8 OHM resistance too high), 1115207 (TI coil), 1115238 (1.3 OHM correct resistance).The 293 number you mentioned is used by Rick"s but I think that is an GM assembly number for the coil and bracket. Look at 298 w/cowl induction and 270 wo/cowl induction in Rick's cat.,now go to the 69 P&A group 2.183 page 2-6. 1966876 w/cowl hood and 1971011 wo/cowl hood. The brackets are different not the coils.
Sorry it took so long to respond be am working on a 67 Camaro and 67 Corvette and they take up a lot of my time.