See pre-war ID hints on Holdsworth Model pages
Built with Reynolds tubing and 68 deg angles this was an alternative for those not wanting the new upright designed bikes.
Model Recognition Table
| Frame Number System & Location (Repeated on fork Stearer Tube) | Four digits on Seat Lug and fork crown, later fork steerer |
| Frame Tubing (Seat Tube ID – mm) | 1936 HM or Chrome Moly 1937 HM 531 or Chrome Molly 1938 531 or HM |
| Frame Angles, Head/Seat, (deg) | 1936-37 Not Known, 1938 68/68 |
| Tube OD (Inch) – Top-Down-Seat | 1 – 1 1/8 – 1 1/8″ |
| Head Tube Lugs | Cast Brampton-WFH Cut/Lightened |
| Fork Crown | Round, 2 1/2″ Rake |
| Head Set Type | Clip  |
| Seat Lug | Cast Brampton-WFH Cut/Lightened |
| Seat Stay Attachment | To Side of Seat Lugs with cut backs  |
| Seat Stem Bolt | Nut & Bolt  |
| Bottom Bracket Lugs | Cast Brampton-WFH Cut/Lightened |
| Gear Cable Run, Over/Under BB | n/a |
| Rear Stay Length (CBB – CDO) | Not Known |
| Wheel Base (Spindle to Spindle) | 42″ |
| Rear Dropouts (Front) | Solid Front & Rear |
| Rear Brake Bridge | Straight?  |
| Brake Bridge Boss – Recessed Bolt | no |
| BB Hight | Not Known |
| Wheel Size | 26″? |
| Head Badge/Transfer | Transfer |
| Decals & Name Plate | Not Known |
| BB Cable Guides | no |
| BB Oiler | Yes |
| Gear Change Lever Lugs | no |
| Rear Stay Gear Cable Guides | no |
| TT Brake Cable Stops/Guides | no |
| Mudguard Stay Attachments | Tabs to Forks and Rear Stays |
| Bottle Holder Bosses | no |
| Colour | to Choice |
| Chrome | Fork Ends & Tips |
| Comments |