DDave,
There were many changes to Bear Serial Numbering sequences over the years. Some changes were made mid-year so you may never find HA999. At some point in 1960 all the Bear Serial Numbering changed from beginning with two letters, to beginning with two numbers. This change is proven out in the posts above of Serial Numbers of bows in the possession of zepnut and warpedarrow...
The four Kodiak Deluxe bows that I have kept that start with the standard two letters are...
HA001 - 56" - 31# - the first standard production 56" Kodiak Deluxe
IA723 - 60" - 40#
LA001 64" 38# - the first standard production 64" Kodiak Deluxe
LA408 - 44" - 100# - the only Wedge Sight Window Kodiak Deluxe that I've heard of in existence (there are likely others as the Kodiak Deluxe was Bear's best ever at the time)
I am still looking for the 60" Serial Number IA001 - the first standard production 60" Kodiak Deluxe
Although I may never find the elusive 60" IA001, it is of great comfort to have a 60" Kodiak Deluxe that precedes IA001