gladstone plates

[couchpot123]

ihave a pair of glass plates with the name gladstone on them. any idea how old they are & are they worth much. thanx in advance

[heathfield]

If they're the same as the Greener 'Gladstone' plates at http://www.glass.co.nz/jobling.htm , one plate went for �8.00 on eBay on 3rd April. Not a lot, I'm afraid!