This is collection of application data/reference guides/sale sheets for a variety of HVAC units from the Carrier Corp.  Most of these are from the 1960s; spotted one from 1970.  Around 25 of these guides are in this lot.

The units covered (based on the info in the upper right hand corner) are:
10F, G (x2)
16HA
16JA
17CA (x3)
29DA
30GA
38AB-10F
38AC
38AC-40RR, RT
38BQ
38GF
40CB, CH, CJ
43AA, 43B, 43C
46BA, BB
46BC, BD
46S
49A
50DQ
58BB, BD
58CA
58CH
58DA
58FC, FH, FL, FV

These are vintage books and may have wear, pencil/pen writing, staining, etc.

Please note that Ebay will charge and collect sales tax based on your state.