Totally, five of these 4-5/8″ x 6-5/8″ Singapore postcards are available.  Three are unused:  two are Grade 2 ($2) and one is Grade 1 ($3).  Another was mailed from Singapore in 1992 with three different stamps and two partial postmarks, heavily smudged and handled (Grade: 3, $4).  Finally, one more, mailed in 1992 with four different stamps, and two postmarks (Grade: 2, $8).