The "tiger spear" was a large hunting spear in use by the Qing dynasty Tiger spear division.
Chinese: Hǔqiāng (虎槍)
Manchu: Tashi gida
It appears in the 1766 Huángcháo lǐqì túshì (皇朝禮器圖式) or "Illustrated Regulations of the Ceremonial Paraphernalia of the Dynasty" which in turn was based on a 1759 manuscript. See below the original page and my translations:
"According to the design of the 14th year of Qianlong.
Regulations of the dynasty; Tiger Spear Division's Tiger Spear: Spearhead made of forged steel. Overall 8 chi 3 cun long. Spearhead is 9 cun long, with triangular tip and center ridge. Shaft is 7 chi 4 cun long, made of white waxwood. At the top of the shaft are tied two transverse pieces of deer antler, 1 cun long. There is a horn ferrule at the end of the shaft. The spearhead is covered with a leather bag, wrapped with birch bark. It is carried by tying it to a leather belt."
Converted to cm:
Overall: 290.5 cm
Head: 35 cm
Shaft: 259 cm
Top left: Left a member of a Qing imperial hunting party with a tiger spear worn through his belt.
Top right: the Qianlong emperor and his tiger spearmen hunting tiger.
Bottom left: Left a magnificent antique tiger spear I photographed in the Palace Museum in Beijing, with sunken panels inspired by Indian push daggers.
Bottom right: A more standard antique tiger spear I photographed in the Beijing military museum in 2008.