The Atlanta Attachment's Units Numbers are formed in the following manner.
Sewing Machine Codes
G67
R67
R68
S67
Y66
Y67
Y68
Configuration
4411FY6701
PEGASUS 5.6mm
IMOLDI 4.5mm
RIMOLDI 6.00mm
SINGER 5.6mm
YAMATO 4.8mm
YAMATO VC2700-156M 5.6 mm
YAMATO 6.4mm
Technical Manual & Parts Lists
Configuration
Machine Class Code Number
AAC Unit Code Number
45