Interesting! – I would be very interested in learning more about this find. Are there detail pictures available somewhere perhaps? What is the dating of the Walbrook finds?
These caligae show features that can be observed with the Castleford and Valkenburg caligae, which puts them into the late 1st century AD IMHO (cf. https://www.facebook.com/leatherworkthroughtheages and http://sutor.jimdo.com/shoes/roman-shoes/caligae/).
Walbrook Discovery Programme 
Interesting! – I would be very interested in learning more about this find. Are there detail pictures available somewhere perhaps? What is the dating of the Walbrook finds?
These caligae show features that can be observed with the Castleford and Valkenburg caligae, which puts them into the late 1st century AD IMHO (cf. https://www.facebook.com/leatherworkthroughtheages and http://sutor.jimdo.com/shoes/roman-shoes/caligae/).