Hi whilst i was in the Australian Navy I was posted to an EX RF tanker and i acquired a couple of red light bulbs used on the bridge at night. On the top of the globe is written Property of H.(picture of a crown)M. Government, R.S. 78, 220, Crompton 40w, Made in UK, and then an S or 8 on bottom of writing. The globes are a lot heavier than a normal globe and the glass seems a lot thicker, I'm wondering if this was to protect them against shock during combat any information would be appreciated.
Regards Jason
