ABU apparently considered 500 reels as Spinning reels and not a separate model type, by including them in this subsection of the manual.
Record Reels were first made by Zangi of Italy.
My personal favourites were the Cardinal 57/52 series with the reversable handles
Service Measures Page 1
Service Measures Page 2
Schematic 3
Schematic 33
Schematic 4
Schematic 40
Schematic 44X
Schematic 54
Schematic 55
Schematic 57
Schematic 6/7
Schematic 60
Schematic 70
Schematic 44
Schematic 66/77
Schematic 66X/77X
Schematic ABU 333
Schematic ABU 444A
Schematic 501
Schematic 503
Schematic 505
Schematic 506
Schematic 507
Schematic 508
Spare Part Alterations
Parts and Model Matrix 1
Parts and Model Matrix 2
Parts and Model Matrix 3
Parts and Model Matrix 4
Parts and Model Matrix 5
Parts and Model Matrix 6
Parts and Model Matrix 7
Parts and Model Matrix 8