Whilst on the topic of pattern identification, this is where we are now, and it is quite likely there are other patterns and names out there
https://docs.google.com/document/d/1tXvObBOfgGpOKTh_jkttPcH1lKd--bfHY_sIjmr8uy8/edit Identified Twist & Damascus PatternsEvery effort has been made to label damascus patterns by what they would have been named when the barrels were manufactured or the 'trade name' used by the gun maker.
1. Skelp, Plain Twist, English Twist, Wire Twist, Ferlacher and Lutticher Birmingham, Lutticher Crolle, Damas Rubans, Canons tordus
2. Stub Twist, Remington ‘London’
3. Damascus Twist, Ferlacher and Lutticher London, Baker ‘Best London Damascus Twist’
4. English (One Iron) Damascus Twist, Damas Anglais Coupe', Gebrochener Englischer Damast, Combination Damascus
5. Laminette-Damask, Laminette Simple & Double, Barber’s Pole, Single and Double Damascus Twist
6. Boston and Remington ‘Boston 2 S.J.’
7. Horse-shoe and Remington ‘Boston N.’
8. English Two Rod/Stripe, ‘Oxford’, Lower grade Hufnagel, Damas fer de clous, Damas Anglais, or lower grade Damas Crolle', Remington ‘Oxford 2 S.J.’, most American maker’s ‘Good (or Fine) Damascus’, some Belgian ‘London’ patterns
9. Damas Crolle' (in higher grades), Remington ‘Oxford 4 S.J.’, Three and Four Rod Oxford and Oxford Superfine, ‘English Best’, higher grade Hufnagel, and Manufacture Liegeoise Leopold Bernard (6 Iron) and ML Clou Fin (4 Iron).
10. Lutticher Rosen and some Remington ‘Oxford 4 S.J.’ patterns (with a Distinct weld line down the middle of each scroll)
11. Turkish Damascus, Turkischer Damask, Damas Turc ou Frisé, ‘English Best’, most American maker’s ‘Finest Damascus’
‘Star’ Turkish has black & white stars between the scrolls, distinctly different from Etoile' with tiny stars within the scrolls.
12. Remington ‘Washington N 3 B.P.’, Ferlacher Austria 1, Lutticher Washington, American Flag Bunting, Stars and Stripes, Bresilien, Manufacture Liegeoise Wellington (all with tiny stars within the scrolls.)
13. Damas Chine’
.....a. Chonon, Thonin, Remington ‘Pieper P.’
.....b. Leclerc, Remington ‘Chine P.’
14. Damas Mouchete’, Bernard - in several grades and variants
15. Damas Moire'
16. Herringbone, Remington ‘Ohonon 6 S.T.’, Remington ‘Legia P.’, Manufacture Extra, Lutticher Corche, Lutticher Toncin
17. Etoile' and Remington ‘Etoile 3. B.P.’
18. Chain, ML Chainette & Hunter Arms Chainette
19. Ferlacher Gedreht (turned) and Halbgedreht (half-turned)
20. Ferlacher Austria 2
21. Ferlacher Carinthia
but possibly a dealer could give me 3' feet of table where I could set up and provide an opinion (for free) as to damascus pattern identification. In return, I could bring my Bill Henry wall thickness gauge and measure a 
