Hello, A relaxing weekend, hope it same for everyone. Here is another from Hong Kong. This might interest Machin collectors as well. This sheet shows the progressive printing process of a $5 definitive stamp in the 4 different colours or light green, dark green, ultra-flourescent and black. SG MS 771 issued in 1994 to commemorate the opening of Hong Kong '94 International Stamp exhibition.

Best wishes enjoy your philately Michael cddstamps.com