MINT, F-VF or Better & Never Hinged. Size = 50 mm x 65 mm, approx.
Other Details
Nicklin really went a little wild with the 1960 issue. The stamps measure 50 mm x 65 mm each. They were arranged in a 5-across by 2-down checkerboard pattern. The end stamps are straight edges. Technically, they should be separated into VERTICAL pairs, in which case 40% (2 out of 5) of the pairs will have straight edges. If they are separated into HORIZONTAL pairs, then 40% (2 out of 4) of the pairs will have straight edges. Overall, this is a difficult issue...