Davies Condensers, "GWL" (Double Surface).
| Cat. No. | Socket | Cone | Effective Length mm. |
| GWL356/1 | 19/26 | 19/26 | 150 |
| GWL356/2 | 24/29 | 24/29 | 150 |
| GWL356/3 | 19/26 | 19/26 | 200 |
| GWL356/4 | 24/29 | 24/29 | 200 |
| GWL356/5 | 29/32 | 29/32 | 200 |
| GWL356/6 | — | 19/26 | 200 |
| GWL356/7 | — | 24/29 | 200 |
| GWL356/8 | — | 34/35 | 200 |
| GWL356/9 | — | 19/26 | 250 |
| GWL356/10 | 19/26 | 19/26 | 250 |
| GWL356/11 | 24/29 | 24/29 | 250 |
| GWL356/12 | 19/26 | 19/26 | 300 |
| GWL356/13 | 24/29 | 24/29 | 300 |
| GWL356/14 | 24/29 | 24/29 | 400 |
| GWL356/15 | 24/29 | 24/29 | 500 |
| GWL356/16 | 34/35 | 34/35 | 500 |
| GWL356/17 | 34/35 | 34/35 | 600 |
