This fabulous antique optometry chart is quite unique to what we’ve had in the past.
It is from the British Optical Co in Sydney & the chart has 4 different sides so it can be displayed a number of ways, essentially 4 charts in one!
There are a few age related marks as you would expect from something of this vintage.
Please refer to photos as they form part of the description.
Size - 60cm high, 47cm wide (when fully opened & laid flat).