3. The Contracting States shall extend to stateless persons the benefits of agreements concluded between them, or which may be concluded between them in the future, concerning the maintenance of acquired rights and rights in the process of acquisition in regard to social security, subject only to the conditions which apply to nationals of the States signatory to the agreements in question. 4. The Contracting States will give sympathetic consideration to extending to stateless persons so far as possible the benefits of similar agreements which may at any time be in force between such Contracting States and non-contracting States. 1954 c o n v e n t i o n • stateless persons 15