a modest spur to induce others to come forward with valuable contributions

acromio-clavicular spur

Apple spur type varieties

axle spur wheel

blunted spur

bone spur

bouquet spur

Calcaneal spur

Calcaneus Spur

change spur gear

Choice-Spur

Circumfluent Spur Dike

Computer-aided Parameterized Design of Spur Gear

Cone Spur Gear Involute

constructed spur dikes

cross-spur

cut off meander spur

cut off spur

cutoff meander spur

cutoff spur