subs. phr. (thieves’).—A diamond scarf-pin: also SPARKLE (or SPARK-) PROP.
1879. J. W. HORSLEY, ‘Autobiography of a Thief,’ in Macmillan’s Magazine, XL. 506. ‘Pipe his spark PROP’ (diamond pin).
1888. G. R. SIMS, A Plank Bed Ballad [Referee, 12 Feb., 3].
| And a spark PROP a pal (a good screwsman) and I | |
| Had touched for in working two dead ’uns. |
