Pic #1: the tractor itself

Bout a year previously to Lipták's tank patent, in 1912 an Austrian engineer, Oberleutnant Burstyn, too designed a tank for the Austro-Hungarian Army (pic #2, #3 and #4). He was also refused, then he turned to Berlin but found no luck there either. Supposedly his plans were stolen by British spies and were sent to Britain where Swinton used them to create his own version of a tank (patented in November 1914). However his tank was based on the Holt Caterpillar Tractor like Lipták's but Burstyn's doesn't look like it was.