´Narrated Ibn 'Abbas:` A similar report was narrated from Ibn 'Abbas. The price of a shield at the time of the Messenger of Allah was estimated to be ten Dirhams.
Hadith Referenceسنن نسائي / كتاب قطع السارق / 4954
Hadith Gradingالألبانی:شاذ | زبیر علی زئی:ضعيف، إسناده ضعيف، محمد بن إسحاق بن يسار مدلس وعنعن. والحديث السابق (الأصل: 4953) وسنده حسن يغني عنه. انوار الصحيفه، صفحه نمبر 359
The aforementioned two narrations reported from Ibn Abbas (radi Allahu anhuma) are considered shaadh (anomalous) because they contradict the authentic ahadith, as in the most authentic narrations the price of the shield is three dirhams or a quarter dinar.
Source: Sunan Nasa'i: Translation and Benefits by Shaykh Hafiz Muhammad Amin Hafizullah, Page: 4954