Philips 40w TLS and TLS Deluxe tubes

Some real old rarities from the lamp bin haul yesterday. These were only made a month apart, but notice how that is precisely when Philips switched to their all-familiar alphanumeric date code system! Unfortunately, I had two of the 1964 TL-S tubes but a likely pre-existing hairline crack and thermal shock from yesterday's cold made it lose vacuum by its own accord.