Old Photographs - Current Mysteries

Any further information on these mysteries?

Mystery Print No 1 - 1940s - 50s? Could this be Dover? Any ideas? B and W print 4.75 x 6.5 inches

Mystery Print No 2. Circa 1890 -1910. Obtained this one with a beautiul early photo of Bognor Regis - but is this the same place - print size 6.5 x 4.5 inches

Mystery Print No 4. Lovely Victorian Butcher's shop with the staff outside.
Name just visible inside J.S..... There is something like a huge coat
of arms above the door. Photo very faded and has been digitally enhanced.
Print measures 5.5 x 4 inches. Photographer's name on reverse "J. Houghton and Co, High Street Barnes". Does this help to locate it?

Mystery Print No 4 - postcard - postally unused, of military group. Ward 2 Squad, RASC Nov 5th 1940 - who were they?

Mystery print No 5 - an old (motorcycling?) garage from the 1930s. I don't know why but it looks more South of England than North.

A glass shows the whole building is called The terrace. There are signs for Lodge plugs, Pratts Perfection Motor Spirit, Ferodo brake linings, Avon and Mitchelin tyres.

There is a motorcycle outside with the index number HO4289 (a Hampshire index number). Five men and a child are outside. The photo was found in a junk shop in Rutland and measures 6 x 4.5 inches.