[AndyMa]

Surely the reported Tiger Moth SR17, SR18, SR19 were actually Syrian aircraft?
To quote from Tiger Moth guru Malcolm Fillmore's records:

3854 (Gipsy Major #80788) Toc as N6541 at 5 MU Kemble 10.2.39. To 56 ERFTS Kenley 29.8.39. To 14 EFTS Elmdon 15.10.39. To 8 MU Little Rissington 28.1.46. To 3 FTS Feltwell 1.7.47; coded "FBQ-C". To 9 MU Cosford 24.2.49. Sold 6.5.49 to JG Price. Overhauled at Tollerton; CofA 10721 issued 3.11.49 to Ministry of Defence, Syria as SR.17.

85165 Toc as T6956 at 39 MU Colerne 15.11.41. To 6 Flying Instructors School, Filton 22.2.42; to Worcester 4.42. To 2 EFTS Worcester 25.7.42; to Yatesbury 7.45. To 1 FTS Spitalgate 25.9.47. To 3 FTS Feltwell 26.2.48; coded "FBQ-Z". To 9 MU Cosford 16.2.49. Sold 6.5.49 to JG Price. Under conversion Tollerton (10.49). CofA 10722 issued 3.11.49 to Ministry of Defence, Syria as SR.18.

84348 Toc as T7995 nominally at 15 MU Wroughton 3.3.41; stored ‘purgatory’ at Kidlington; returned to Morris for erection [undated]. To 3 EFTS Watchfield 7.8.41; to Shellingford 12.41. To 3 FTS Feltwell 22.3.48; coded “FBV-A”. To 9 MU Cosford 14.2.49. Sold 6.5.49 to JG Price. Overhauled at Tollerton & CofA 10723 issued 3.11.49 to Ministry of Defence, Syria as SR.19.